Process and apparatus for continuous acid hydrolysis and sacchar

Details Process and apparatus for continuous acid hydrolysis and sacchar Process and apparatus for continuous acid hydrolysis and sacchar

1979-04-24

1981-03-24

Marcus, Michael S.

Sugar, starch, and carbohydrates

Apparatus

Hydrolyzing

127 5, 422209, 422270, 422273, 34126, B01J 1908, B01F 902, C13K 102

Patent

active

042578183

ABSTRACT:
Continuous hydrolysis to produce sugars is effected by cyclically immersing a solid, divided lignocellulosic material in a bath of concentrated hydrochloric acid and draining the material between successive immersions so as to dissolve the produced sugars, until the sugar concentration of the acid in the bath has attained a desired value.
The solid material and the liquid acid are delivered to a tubular horizontal rotary reactor arranged to provide a bath of the acid, to produce a rotating movement for cyclical immersion of the solid material in the bath of acid and longitudinally displace the solid material undergoing hydrolysis together with the acid of the bath and to continuously discharge solid residue and acid containing dissolved sugars due to overflow by gravity at an outlet end of the reactor.

REFERENCES:
patent: 2375499 (1945-05-01), Shigley
patent: 2948593 (1960-08-01), Larson
patent: 2969277 (1961-01-01), Carlsson et al.
patent: 3676074 (1972-07-01), Shibayama et al.
patent: 4018567 (1977-04-01), La Point

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